There are at least 347 million guns in America. No matter your opinion of them, it is highly likely that you will encounter one at least sometime during your life. This is what everyone needs to know in order to be safe around guns.

Products like thermal imaging, weapon-mounted range finders and even a new handgun integrally built around its silencer sound like dreams come true to firearms enthusiasts, but to-date such technology has remained military-focussed and too expensive. No more.

If someone told you their modded BMW 2002 had a secret weapon, you'd likely guess they meant that it was packing some heat under the hood. Perhaps a big turbo, or maybe an S14 engine swap. But that's not the case here—this BMW's secret weapon is a loaded handgun in a secret compartment. Regardless of how you feel…